The artwork adorns a large, flat outcrop of rock, mostly hidden beneath layers of mud and grass, which slopes gently towards the southeast at an angle of about eight degrees. This unassuming location conceals one of the area's more intriguing collections of cup and ring marks; mysterious symbols carved into stone by our ancestors thousands of years ago.

The rock face features five or six cup marks, with three distinctive disc-type cups amongst them. The centrepiece of the composition is particularly striking: a disc-cup surrounded by three complete concentric rings, each carefully pecked into the stone surface. From its outermost ring, two grooves extend outward; one heading east and another running south, the latter accompanied by a small cup mark. Some of the cups show faint traces of tails or grooves extending from them, whilst an oval cup can be found further west on the outcrop, and another possible cup mark sits at a lower level.

First documented by Van Hoek in 1987, this rock art site forms part of the wider prehistoric landscape of Donegal, where such carvings are relatively common but no less enigmatic for their frequency. Whilst the exact meaning and purpose of these cup and ring marks remain a mystery, they likely held ritual or symbolic significance for the Bronze Age communities who created them between 4,000 and 2,500 years ago. The site at Magheranaul offers visitors a tangible connection to these ancient peoples, their enduring marks on the landscape serving as a reminder of the deep history embedded in Ireland's rural countryside.